ATLANTA -- A national uproar is gaining momentum to convince the TSA to reverse its stand on allowing passengers to carry pocket knives onboard airplanes starting April 25 .

Latest to strongly criticize the move is Richard Anderson, Chairman of Delta Air Lines.

He joins flight crews and legislators in telling the TSA to reverse its policy that's been in place for 11 years.

Causing the stir are small pocket knives like the Swiss Army knife that do not lock and have blades under 2.36" and a half inch wide.

The TSA says the change matches international standards.

But still banned are box cutters, razors and knives with molded grips or fixed blades.

In a letter to the head of the TSA, Anderson says "these items (pocket knives) will add little value to the customer security process flow in relation to the additional risk for our cabin staff and customers."

Flight attendants are also concerned.

"We believe this is a slippery slope. What will be the next weapon that can come aboard," said Veda Schook of the Association of Flight Attendants.

A feeling shared by legislators like Sen. Charles Schumer of New York. "You don't have to have a PhD in Physics or be an Albert Einstein to know that these are dangerous," he said.

Despite the nationwide pressure to change the policy, the TSA says it will stand firm and start allowing knives onboard April 25.